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A novel hybrid cryptosystem based on DQFrFT watermarking and 3D-CLM encryption for healthcare services

一种基于DQFrFT水印和3D-CLM加密的医疗服务混合密码系统

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Abstract

Quaternion algebra has been used to apply the fractional Fourier transform (FrFT) to color images in a comprehensive approach. However, the discrete fractional random transform (DFRNT) with adequate basic randomness remains to be examined. This paper presents a novel multistage privacy system for color medical images based on discrete quaternion fractional Fourier transform (DQFrFT) watermarking and three-dimensional chaotic logistic map (3D-CLM) encryption. First, we describe quaternion DFRNT (QDFRNT), which generalizes DFRNT to handle quaternion signals effectively, and then use QDFRNT to perform color medical image adaptive watermarking. To efficiently evaluate QDFRNT, this study derives the relationship between the QDFRNT of a quaternion signal and the four components of the DFRNT signal. Moreover, it uses the human vision system’s (HVS) masking qualities of edge, texture, and color tone immediately from the color host image to adaptively modify the watermark strength for each block in the color medical image using the QDFRNT-based adaptive watermarking and support vector machine (SVM) techniques. The limitations of watermark embedding are also explained to conserve watermarking energy. Second, 3D-CLM encryption is employed to improve the system’s security and efficiency, allowing it to be used as a multistage privacy system. The proposed security system is effective against many types of channel noise attacks, according to simulation results.

摘要

四元数代数已被应用于分数阶傅里叶变换(FrFT), 形成了一种彩色图像处理的常用方法. 然而, 具有充分基本随机性的离散分数阶随机变换(DFRNT)仍有待研究. 本文提出一种基于离散四元数分数阶傅里叶变换(DQFrFT)水印和三维混沌逻辑映射(3D-CLM)加密的彩色医学图像多级隐私系统. 首先, 描述了四元数DFRNT(QDFRNT), 其将DFRNT推广用于四元数信号的有效处理, 然后将QDFRNT应用于彩色医学图像自适应水印. 为有效评估QDFRNT, 本文推导了QDFRNT四元数信号与DFRNT信号4个分量之间的关系. 利用人眼视觉系统(HVS)对彩色宿主图像边缘、 纹理和色调的即时掩蔽性, 以及QDFRNT彩色医学图像自适应水印和支持向量机(SVM)技术, 自适应调整每个块的水印强度. 此外, 讨论了水印嵌入的约束条件, 保持水印能量. 其次, 采用3D-CLM加密提高系统安全性和效率, 使其可以作为多级隐私系统. 仿真结果表明, 所提出的安全系统能有效抵御多种类型的信道噪声攻击.

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The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Authors

Contributions

All authors designed the research. Fatma KHALLAF, Walid EL-SHAFAI, and Naglaa F. SOLIMAN processed the data and drafted the paper. Fatma KHALLAF and Walid EL-SHAFAI helped organize the paper. Walid EL-SHAFAI, El-Sayed M. EL-RABAIE, Naglaa F. SOLIMAN, and Fathi E. Abd EL-SAMIE revised and finalized the paper.

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Correspondence to Walid El-Shafai.

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Fatma KHALLAF, Walid EL-SHAFAI, El-Sayed M. EL-RABAIE, Naglaa F. SOLIMAN, and Fathi E. Abd EL-SAMIE declare that they have no conflict of interest.

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Project supported by the Princess Nourah bint Abdulrahman University Researchers Supporting Project (No. PNURSP2023R66)

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Khallaf, F., El-Shafai, W., El-Rabaie, ES.M. et al. A novel hybrid cryptosystem based on DQFrFT watermarking and 3D-CLM encryption for healthcare services. Front Inform Technol Electron Eng 24, 1045–1061 (2023). https://doi.org/10.1631/FITEE.2200372

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